The object is a rectangular circuit board with posts. There are a variety of resistors, capacitors, and semiconductors connected to the posts. A piece of Plexiglas shields the bottom of the board. A note from the donor that came with this object says, "As I remember, but not sure: This part was mounted on rear side of the Univac 1106 Maintenance panel. P/N 40943291-00D. /RL PC-board is BAD, probably a diode is burned."